KR101042971B1 - Power generation system using a dam for tidal power generation - Google Patents

Abstract

The present invention relates to a power generation system using tidal dams, and installs a hydrological dam having first and second sluices at a place where tidal gaps are severe, and divides it into an ocean and an artificial lake, and the artificial lake direction seabed of the first sluice. On the surface, a plurality of power generation devices are installed that generate power using the flow of seawater during high tide, and tidal power generation is provided with a plurality of power generation devices that generate power using the flow of sea water at low tide on the sea surface of the second sluice. It relates to a power generation system using a dam. On the bottom surface of the artificial lake direction of the first sluice 31, the generator 40 is installed in rows and rows at a predetermined interval to produce electric power by the flow of seawater flowing into the first sluice 31, which is opened at high tide. In addition, the power generation device 40 is installed in a row and a row at a predetermined interval on the bottom surface of the sea direction of the second sluice 32, and the electric power by the flow of seawater discharged to the second sluice 32 opened at low tide. To produce. Accordingly, the present invention collects the power produced by each power generator provided in the column or row on the same line in the first dust collector, and the power collected by the first dust collector again to the second dust collector to the outside It can send a large amount of power generation effect is possible.

Tidal power generation, ocean, artificial lake, hydrologic dam, power generator, dust collector

Description

Power generation system using a dam for tidal power generation

The present invention relates to a power generation system using tidal dams, and more specifically, to install a hydrologic dam having first and second hydrographs in a place where the tidal difference is severe, to divide it into an ocean and an artificial lake, On the bottom of the artificial lake direction, a number of power generation devices are installed that generate power using the flow of seawater at the time of high tide. The present invention relates to a power generation system using tidal dams.

The conventional power generation system using tidal dam has a lower end fixed to the sea bottom near the water gate of the dam, is provided with a large support pile projecting the upper end over the water surface, a gear box provided with a rotor on one side of the vertical surface of the support pile. Thus, during high tide or low tide to produce power by the rotation of the rotor provided in the large support pile.

However, the conventional power generation system is difficult to produce a large amount of power because the power is produced only by the rotor provided in the large support pile, and a separate shandong copper for maintenance of the rotor and gear box attached to the support pile With the device, the rotor and the gearbox are transported from the bottom of the water to the upper end of the support pile which protrudes above the water surface. As the support pile protrudes to a certain height above the water surface, the external force of the ocean increases (wave power and The force is greatest near the water), the support pile is inevitably large, and the moment due to the upper structure is installed on the upper surface of the support pile to secure a space for maintenance of the rotor, gearbox and internal power converter. Will act greatly.

As a result, it is an obstacle that causes great damage not only in appearance but also during voyage and collision of ships. In order to maximize the angle of incidence of changing fluid to the rotor, general current current or tidal current power is designed to adjust the pitch in the rotor. In the case of a fluid entering from behind a large support pile, the pitch adjusting device loses its effects due to interference and dispersion of the fluid due to the large structure.

In order to solve the problems as described above, in the present invention, by installing a hydrological dam having first and second sluices in a place where the tidal phase difference is severe, the sea and artificial lakes are partitioned, and the artificial lake direction of the first sluice direction On the bottom of the sea direction of the second sluice, a plurality of power generating devices are installed in rows and rows at regular intervals, using a flow of sea water at the time of high or low tide, and the blade is connected to the blade rotated by the flow of sea water. An accelerator gear is provided, and a generator for outputting three-phase AC 200 to 250V, a first circuit breaker, and a first inductor are connected to the accelerator gear, and the first inductor outputs a three-phase AC input from the generator to DC. A converter and an inverter for outputting the DC voltage as a three-phase AC 220V are connected, and a second inductor and a second circuit breaker are sequentially connected to the inverter, and the second circuit breaker is connected. It is connected to a transformer for converting three-phase AC 220V to the required voltage, the voltage converted from the transformer of each power generator is collected through the subsea cable through the first dust collector to the second dust collector and sent to the outside tidal power The purpose is to provide a power generation system using a dam for power generation.

In order to achieve the purpose, a water gate dam composed of a first sluice which is opened at high tide and closed at low tide and a second sluice which is closed at high tide and opened at low tide is divided into oceans and artificial lakes, In the power generation system using tidal power generation dam that is generated by using the flow of seawater at the time of high tide or low tide by installing a power generation device on the surface, the power generation device on the bottom surface of the artificial lake direction of the first sluice in rows and rows at regular intervals Is installed, the electric power is produced by the flow of seawater flowing into the first sluice that is opened during high tide, the power generation device is installed in a row and row of a predetermined interval on the sea surface of the second sluice to open at low tide Produces electric power by the flow of sea water discharged to the second sluice, the power generation device is a fixed block fixed to the bottom of the sea, and the high formed on the fixed block upper surface A blade is inserted into the pile to generate electric power by using the flow velocity of the flow, and a rotation shaft having a direction blade for rotating the blade to position the blade in the flow direction of the flow velocity, buoys and wires floating on the sea surface on the upper surface of the rotation shaft. Leads to.

As another feature of the present invention, an acceleration gear driven by the rotation of the blade is connected to the inside of the rotation shaft of the power generator, the high efficiency permanent magnet synchronous generator without a three-phase brush is connected to the output three-phase AC 200 ~ 250V In addition, the generator is connected to the first inductor and the first inductor used in the safety maintenance and troubleshooting of the system, the first inductor is connected to a converter for boosting and outputting three-phase AC input from the generator, An inverter for outputting the DC voltage to the three-phase AC 220V is connected to the converter, and a second inductor and a second circuit breaker are sequentially connected to the inverter, and the second circuit breaker converts the three-phase AC 220V to a required voltage. It is connected to the transformer, the submarine cable is connected to the transformer.

As another feature of the present invention, the power produced by the rotation of the blade provided in the power generator is collected by the first dust collector through the submarine cable connected to the transformer, the first dust collector is provided on the same line The power generated in the rows or rows of power generators is respectively collected first, and the power collected in each of the first dust collectors is totally discharged by the second dust collectors and then sent out to the outside, and the blade and the accelerator gear, Sensors are attached to the generator, the first and second breakers, the first and second inductors, the converter, the inverter, and the transformer, respectively, and monitor the state of the individual generators in real time through a monitor provided in the second dust collector.

As described above, the present invention is to install a hydrological dam having a first and second sluice in a place where the tidal difference between the tidal lagoon is severe, the sea surface of the artificial lake direction of the first sluice divided into the ocean and the artificial lake and the sea direction of the second sluice By installing a plurality of generators that generate power by using the flow of seawater at the time of high or low tide on the surface in rows and rows at regular intervals, the power generated by each generator installed in the same row or row in the first dust collector It is possible to collect dust, and to collect the power collected by the first dust collector again to the second dust collector and transmit it to the outside, thereby generating a large amount of power.

In addition, since the power generator is located in the water, it is possible to reduce the wave force or fluid resistance acting in the vicinity of the water surface, and the upper surface of the rotary shaft inserted perpendicular to the fixed pile fixed to the ground is connected by buoys and wires floating on the sea surface Since the power generator is located in the water at the same time as the position of the power generator, it is possible to prevent collision due to the navigation of the ship, and the rotation axis automatically rotates inside the fixed pile according to the flow direction of the current, so it is always optimal. By maintaining the angle of incidence of the fluid, there is an effect that can be generated with maximum efficiency.

1 and 2 is a schematic configuration diagram of a power generation system using a tidal power generation dam according to the present invention, Figure 3 is another configuration diagram of a power generation device used in the power generation system using a tidal power generation dam according to the present invention. 4 is an internal configuration diagram of a power generation system of a power generation system using tidal dams according to the present invention, and FIGS. 5 and 6 are schematic configuration diagrams illustrating a dust collection process of electric power produced in the power generation device according to the present invention. 7 and 8 are embodiments of a power generation system using tidal dams according to the present invention, FIG. 9 is a graph comparing daily power generation amounts according to the embodiments of FIGS. 7 and 8, and FIG. The second embodiment of the power generation system using the tidal dam according to the invention.

Hereinafter, the components will be described with reference to the drawings.

1 and 2 is a schematic configuration diagram of a power generation system using the tidal dam of the present invention, the first sluice 31 which is opened at high tide and closed at low tide, and the second is closed at high tide and opened at low tide By installing a hydrologic dam 30 composed of a hydrologic gate 32, the marine 10 and the artificial lake 20 are partitioned.

On the bottom surface of the artificial lake 20 of the first sluice 31, the generator 40 is installed in rows and rows at a predetermined interval, and the flow of seawater flowing into the first sluice 31 opened when the tide is opened. Produces power by the power generation device 40 is installed in a row and a row at a predetermined interval on the bottom surface of the sea 10 direction of the second sluice 32, discharged to the second sluice 32 that is open at low tide Power is produced by the flow of seawater.

The power generation device 40 has a fixed block 41a fixed to the sea bottom and a blade 421 for producing electric power by using a flow rate of flow into the fixed pile 41 formed on the upper surface of the fixed block 41a. And a rotation shaft 42 having a direction blade 422 for rotating to position the blade 421 in the flow direction of the flow velocity, and buoy 424 floating on the sea surface on the upper surface of the rotation shaft 42. And a wire 423.

3 is another configuration diagram of a power generator 40 used in a power generation system using tidal dams according to the present invention, which is formed on a fixed block 41a fixed to a sea bottom and an upper surface of the fixed block 41a. The rotating shaft 42 is inserted into the fixed pile 41, the connecting member 425 is provided at both ends of the upper outer peripheral surface of the rotary shaft 42, the blade 421 on the upper outer peripheral surface at both ends of the connecting member 425 ) And a support member 426 having a direction blade 422 is fixed, and the support member 426 is connected to the upper surface of the support member 426 by a buoy 424 and a wire 423 floating on the sea surface, and a power generator ( You can also produce twice the power in 40).

4 is an internal configuration diagram of a power generation system of a power generation system using a tidal dam according to the present invention, wherein the accelerator gear 43 driven by the rotation of the blade 421 inside the rotation shaft 42 of the power generation device 40. Is connected to the accelerator gear 43, the high efficiency permanent magnet synchronous generator 44 without a three-phase brush is connected to output three-phase AC 200 ~ 250V, the generator 44 to maintain the safety and troubleshooting of the system When the first circuit breaker 45 and the first inductor 46 are used are connected, the first inductor 46 has a converter 47 for boosting and outputting three-phase alternating current input from the generator 44 to DC. Inverter 48 is connected to the converter 47 and outputs the DC voltage to the three-phase AC 220V, and the second inductor 46a and the second circuit breaker 45a are sequentially connected to the inverter 48. The second circuit breaker 45a includes a transformer 49 for converting three-phase AC 220V into a required voltage. Connection and the transformer (49), the submarine cable 50 is connected.

The power produced by the rotation of the blade 421 provided in the power generator 40 is collected by the first dust collector 60 through the submarine cable 50 connected to the transformer 49, the first dust collector 60 collects power generated in a column or a row of power generators 40 provided on the same line, respectively, and the power collected in each of the first dust collectors 60 is the second dust collector 70. After collecting the entire electric power in the furnace, the power is sent to the outside (land), and the blade 421, the accelerator gear 43, the generator 44, the first and second breakers 45 and 45a, and the first and second inductors 46 46a), the converter 47, the inverter 48 and the transformer 49 are attached to the sensors, respectively, the state of the individual generator 40 is wired through a monitor provided in the second dust collecting device (70) Alternatively, it can be monitored, controlled and monitored in real time wirelessly, and it is possible to grasp the exact position and the details of the failure when repairing any part.

5 and 6 is a schematic configuration diagram showing the dust collection process of the electric power produced in the power generation device according to the present invention, the installation of the bottom surface of the power generation device 40 is a fixed pile 41 using a crane at low tide The fixed block 41a provided on the upper surface is installed on the sea bottom so as to be in close contact with each other and the fixed block 41a of the neighboring power generator 40, and then the rotary shaft 42 is inserted into the fixed pile 41, The submarine cable 50 connected to one side of the rotating shaft 42 is connected to a column direction, that is, a direction in which seawater flows, as shown in FIG. 5, and then to the second dust collector 70 through the first dust collector 60 in each row. It is preferable to collect the electric power, and as shown in FIG. 6, the second dust collecting device is connected through the first dust collecting device 60 in each row by connecting the submarine cable 50 in the row direction, that is, the 90 ° direction of the seawater inflow direction. Electric power may be collected by using 70.

The reason why the power generators 40 are in close contact with the neighboring power generators 40 as described above is to prevent the generator 40 from being inclined due to the dent or deposition of the surrounding soil (soil) part due to the change in flow rate. to be.

7 and 8 are examples of the power generation system using tidal dams according to the present invention, and show the amount of power generation in a state in which a plurality of power generating units 40 are installed in rows and rows at predetermined intervals in the flow direction of seawater. .

Example 1

7 is an embodiment in which the generator 40 is installed on the bottom of the 110m horizontal and 32.4m vertical, the power generator 40 is installed in 1 to 15 rows to be provided in each column within the 110m horizontal range, odd number The rows and even columns are staggered so that they are divided into rows A, B, and C by tying the first, second, and third power generation units 40 of each row within the vertical 32.4 m range.

As described above, the result of measuring the amount of power generation when the flow rate is 2.1 m / sec and 2.73 m / sec in the state in which the generator 40 is installed (the rotor diameter is 3.7 m and the depth is installed between 4.3 m and 5.0 m) is as follows. It is shown in Table 1 below.

division
location Output (kW) Row A Row B Line C 2.1 m / s 2.73 m / s 1 row 95% 90% 92% 48.39 106.28 2 rows 86% 84% 88% 45.00 98.84 3 row 80% 80% 80% 41.75 91.69 4 rows 77% 76% 80% 40.50 88.95 5 rows 80% 76% 77% 40.50 88.95 6 rows 77% 76% 80% 40.50 88.95 7th row 80% 76% 77% 40.50 88.95 8 rows 77% 76% 80% 40.50 88.95 9 rows 80% 76% 77% 40.50 88.95 10 rows 77% 76% 80% 40.50 88.95 11 rows 80% 76% 77% 40.50 88.95 12 rows 77% 76% 80% 40.50 88.95 13 rows 80% 76% 77% 40.50 88.95 14 rows 77% 76% 80% 40.50 88.95 15 rows 82% 80% 82% 42.61 93.57 Sum 45 623.29 1,368.87 Average power generation (kW) 13.85 30.42

Example 2

8 is an embodiment in which the generators 40 are installed on the sea bottom of 110m horizontally and 32.4m vertically, and the power generators 40 are installed in 1 to 10 rows so that three power generators 40 are provided in each row within a 110m horizontal range. The rows and even columns are staggered so that they are divided into rows A, B, and C by tying the first, second, and third power generation units 40 of each row within the vertical 32.4 m range.

As described above, the result of measuring the amount of power generation when the flow rate is 2.1 m / sec and 2.73 m / sec in the state in which the generator 40 is installed (the rotor diameter is 3.7 m and the depth is installed between 4.3 m and 5.0 m) is as follows. It is shown in Table 2 below.

division
location Output (kW) Row A Row B Line C 2.1 m / s 2.73 m / s 1 row 97% 94% 96% 50.06 109.94 2 rows 93% 91% 94% 48.56 106.64 3 row 89% 89% 89% 46.59 102.33 4 rows 89% 87% 89% 46.13 101.31 5 rows 89% 87% 89% 46.13 101.31 6 rows 89% 87% 89% 46.13 101.31 7th row 89% 87% 89% 46.13 101.31 8 rows 89% 87% 89% 46.13 101.31 9 rows 89% 87% 89% 46.13 101.31 10 rows 90% 89% 90% 46.91 103.02 Sum 30 468.89 1,029.78 Average power generation (kW) 15.63 34.32

Comparing the power generation amount and the power generation difference of Example 1 and Example 2 is as shown in Table 3 below.

division Generator quantity
(dog) Flow rate
(m / s) Rated output
(kW) Total
Power generation
(kW)) Average
Power generation
(kW / pcs) every day
Power generation
(kWh / day) monthly
Power generation Year
Power generation Example 1
45
2.10 17.43 623.2 13.8 14,958.8 448,766.6 5,459,993.8 2.73 38.28 1368.8 30.4 32,852.9 985,587.2 11,991,311.8 Example 2
30
2.10 17.43 468.8 15.6 11,253.3 337,600.0 4,107,467.1 2.73 38.28 1029.7 34.3 24,714.7 741,441.7 9,020,874.5

FIG. 9 is a graph comparing the daily generation amount according to the embodiment of FIG. 7 and FIG. 8, wherein the daily generation amount of Example 1 is 14,958.8 kWh / day when the flow rate is 2.1 m / s, and the daily generation amount of Example 2 is At 11,253.3 kWh / day and the flow rate is 2.73 m / s, the daily generation amount of Example 2 is 32,852.9 kWh / day, and the daily generation amount of Example 2 is 24,714.7 kWh / day, which is 2.73 than the flow rate of 2.1 m / s. It can be seen that more power can be produced at m / s, and more power can be produced at Example 1 than at Example 2.

The power generation device 40 in the power generation system using the tidal dam having the above-described configuration is the power generation device 40 installed in the direction of the artificial lake 20 of the first sluice 31 during the initial design of the sluice dam 30. Considering the number and size of) and the number and size of the generator 40 installed in the ocean 10 direction of the second sluice 32, the seawater passes through the first sluice 31 at the time of high tide. 20) the flow rate required to enter the required flow rate, that is, considering the amount of power generation using the seawater flowing into the first sluice 31 when the tide and the low water discharged to the second sluice 32 when the tide is low (20) is to be provided at all times.

Although the configuration of the hydrological dam 30 and the generator 40 as described above is possible at the time of initial design, in the case of the already installed hydrological dam 30 of the power generation system using the tidal power generation dam according to the present invention of FIG. As in the second embodiment, in consideration of the flow rate flowing into or out of the sluice dam 30 by installing the generator 40 to maintain the interval between the sluice dam 30 and the generator 40, the incoming sea water It shall be designed so that there is no change in flow rate.

Therefore, the present invention is to install the hydrological dam 30 having the first and second sluices (31, 32) where the difference between tidal tides are severe, and partitioned into the ocean (10) and artificial lake (20), the first sluice ( 31. The plurality of power generation devices 40 for generating power using the flow of seawater at the time of high tide or low tide are provided on the sea bottom in the artificial lake 20 direction and the sea bottom 10 in the second sluice 32 at regular intervals. Installed in columns and rows, the generator 40 is provided with an accelerator gear 43 connected to the blade 421 is rotated by the flow of sea water, the accelerator gear 43 is a three-phase AC 200 ~ 250V Generator 44 for outputting the first circuit breaker 45 and the first inductor 46 is connected, the first inductor 46 to boost the output of the three-phase AC input from the generator 44 to DC A converter 47 and an inverter 48 for outputting the DC voltage as a three-phase AC 220V are connected, and a second inductor 46a and a second circuit breaker 45a are connected to the inverter 48. For example, the second circuit breaker 45a is connected to a transformer 49 for converting three-phase AC 220V into a required voltage, and the voltage converted by the transformer 49 of each power generator 40 is a submarine cable. The dust is collected by the second dust collecting device 70 through the first dust collecting device 60 through 50 and is sent out to the outside (land).

Although the present invention has been shown and described with respect to specific embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. Anyone who can afford it will know.

1 and 2 is a schematic configuration diagram of a power generation system using tidal dam according to the present invention.

Figure 3 is another configuration of the power generation device used in the power generation system using a tidal dam for the present invention.

4 is an internal configuration diagram of a power generation device using a dam for tidal power generation according to the present invention.

5 and 6 are schematic configuration diagrams showing the dust collection process of the power produced by the power generation apparatus according to the present invention.

7 and 8 are embodiments of the power generation system using the tidal dam according to the present invention.

9 is a graph comparing daily power generation according to the embodiment of FIG. 7 and FIG. 8;

10 is a second embodiment of a power generation system using tidal dams according to the present invention;

Description of the Related Art [0002]

10: ocean 20: artificial lake

30: hydro gate dam 31: first gate

32: second floodgate 40: power generation device

41: fixed pile 42: axis of rotation

43: accelerator gear 44: generator

45,45a: First and second breakers 46,46a: First and second inductors

47: converter 48: inverter

49: transformer 50: submarine cable

60: first dust collector 70: second dust collector

Claims (3)

By installing a hydrologic dam (30) consisting of a first sluice (31), which is opened at high tide and closed at low tide, and a second sluice (32), closed at high tide and opened at low tide, the ocean (10) and the artificial lake (20) In the power generation system using a tidal power generation dam that is divided into a), and the generator 40 is installed on the sea bottom to generate power by using the flow of seawater at the time of high or low tide, On the bottom surface of the artificial lake 20 of the first sluice 31, the generator 40 is installed in rows and rows at a predetermined interval, and the flow of seawater flowing into the first sluice 31 opened when the tide is opened. Produces power by the power generation device 40 is installed in a row and a row at a predetermined interval on the bottom surface of the sea 10 direction of the second sluice 32, discharged to the second sluice 32 that is open at low tide Produces electric power by the flow of sea water, the power generation device 40 is a fixed block (41a) is fixed to the bottom of the sea, and the flow velocity into the fixed pile 41 formed on the upper surface of the fixed block (41a) A rotating shaft 42 having a blade 421 for producing electric power using a flow and a direction blade 422 for rotating the blade 421 to be positioned in the flow direction of the flow rate is inserted, and the rotating shaft 42 The upper surface is connected to the buoy 424 and the wire 423 floating on the sea surface Power generation system using the dam for tidal power as Jing. The method of claim 1, An accelerator gear 43 driven by the rotation of the blade 421 is connected to the inside of the rotation shaft 42 of the power generator 40, and the accelerator gear 43 has a permanent magnet synchronous generator 44 without a three-phase brush. Is connected to output a three-phase AC 200 ~ 250V, the generator 44 is connected to the first circuit breaker 45 and the first inductor 46 used for the safety maintenance and troubleshooting of the system, the first inductor The converter 47 is connected to a converter 47 for boosting and outputting three-phase alternating current input from the generator 44 to DC, and the converter 47 outputs the DC voltage to three-phase AC 220V. Is connected to the inverter 48, the second inductor 46a and the second circuit breaker 45a are sequentially connected, and the second circuit breaker 45a is a transformer 49 for converting three-phase AC 220V into a required voltage. ), And the transformer 49 is a tidal power generation dam, characterized in that the submarine cable 50 is connected to Power generation system. delete

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